Back Up Ring 1-11680-035 High Pressure Waterjet Pump Sealing Parts

The Back Up Ring 1-11680-035 is an essential sealing support component used in Waterjet Intensifier pump systems. Its main function is to reinforce O-rings and dynamic seals under high-pressure conditions, helping prevent seal extrusion, deformation, and premature wear during pump operation.
This back up ring works together with sealing elements in hydraulic and ultra-high-pressure assemblies to maintain seal stability and improve overall sealing performance. It is especially important in applications involving extreme pressure, reciprocating motion, and continuous mechanical stress.
A high-quality back up ring helps maintain pressure integrity, reduce leakage risks, and extend the service life of the sealing system.

Is Back Up Ring 1-11680-035 a Wear Part?

Yes — the Back Up Ring 1-11680-035 is considered a wear part.
Although it is more durable than soft sealing materials, it continuously operates under extreme pressure, friction, vibration, and thermal cycling. Over time, it may wear, crack, deform, or lose its support capability.
If not replaced when worn, it can lead to seal extrusion, leakage, unstable pressure, and premature seal failure.
Regular inspection and scheduled replacement are strongly recommended.